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Department of Safety Division of State Police Marine Patrol


31 Dock Road, Gilford, NH 03249

Telephone 603-293-2037
Toll Free 1-877-642-9700

Other Useful Contacts

Emergency 911
Safe Boating Education 603-293-2037 Monday–Friday
Mooring Permits 603-293-2037 Monday–Friday
Boat Registration 603-227-4030 Monday–Friday
U.S. Coast Guard Auxiliary
U.S. Power Squadrons 1-888-367-8777

If your vessel discharges oil or hazardous substances in the water, immediately call the National Response Center at 1-800-424-8802.

Also notify the New Hampshire Department of Environmental Services (NH DES) by calling :

  • 603-271-3899 (oil and non-oil spill) between the hours of 8:00 a.m. to 4:00 p.m. Monday–Friday.
  • After 4:00 p.m., call the New Hampshire State Police at 603-223-4381, or in state toll-free 1-800-346-4009.